McKinney Avenue Contemporary launched a good idea a few years back by putting shows in the Mercantile Coffee House as part of its community outreach program. The beauty of the coffeehouse was that it gave the MAC a downtown space, in addition to its Uptown headquarters. The coffee was good, too.

Well, the Mercantile closed during the summer (too bad), but the MAC acted quickly to find a new space downtown. It’s now staging shows at a venue called Ro2 Downtown Projects, which is hosting a new show that celebrates postage stamps as historical documents.

“The images on the stamps reveal their journey through political revolutions, cultural celebrations, inner turmoil and prosperity,” reads the MAC description of the Carrie Crumbley exhibition, “Place Stamp Here,” which runs through Feb. 23 at Ro2’s downtown space at 110 N. Akard St.

Turner House is the 101-year-old home of the Oak Cliff Society of Fine Arts. It’s considered a landmark in Oak Cliff’s Winnetka Heights neighborhood. On Feb. 21, Houston gallery owner William Reaves will use the venue to present “Beyond the Dallas Nine: The Regionalist Legacy in Texas” as part of the Spring Salon Series. The Salon will mark the opening of a weeklong exhibition of paintings by the late Jack Erwin. Officials for the Turner House describe him as a noted Dallas artist and architect.

Sun to Moon Gallery has added what it calls “an online multimedia component” to its new show, “Alan Ross: Forty Years in the West.” Ross learned his black-and-white craft at the lens of the master, Ansel Adams.

Ross’ Sun to Moon show consists of 28 black-and-white prints taken over a 40-year period and includes some of Adams’ work from the 1970s as well as pictures taken at the LBJ Ranch in Stonewall in 2011.

The folks at Sun to Moon decided to let Ross share his amazing stories by putting them on video. The four short films have since been posted on YouTube.

Ross’ show runs through Feb. 16 at the gallery, 1515 Levee St. in Dallas.

For those who prefer the photographic arts, both Sun to Moon and Photographs Do Not Bend offer consistently fine examples. PDNB has a new show opening Feb. 23 that features the work of Bunny Yeager, whose hosts describe her as the “legendary pinup photographer.”

In 1953, US Camera magazine named Yeager “The World’s Prettiest Photographer.” Yeager was a former model who loved exotic animals, and, her hosts say, tiny bikinis.

Yeager lives in Florida and will send signed copies of her recent book to PDNB, which will make them available at the opening.

Even the Crow Collection of Asian Art is opting for a photographic show. It will open Feb. 16. It’s a special exhibition of photography “captured on glass plates” over a five-year period beginning in 1868. “Through the Lens of John Thomson” runs until May 5.

Thomson faced challenges known by few photographers, since many of his subjects, according to his hosts, “feared that having their picture made could take vital essences from their body.” Even so, he managed to capture the likenesses of flower sellers, knife grinders, brides and bureaucrats.

“Thomson wanted to show his audience the human aspects of life in China through his extensive record of everyday street scenes — rarely captured by other photographers of that era,” say the folks at the Crow.